Patent · US Active

2-acetylpyrroline precursor

US12239151B2 · kind B2 · utility

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8Claims

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Assignee

FIRMENICH SA · CH

Inventors

Christian Starkenmann · Onex, CH
Yvan Niclass · Satigny, CH

Key dates

Filing date	Aug 6, 2020
Grant date	Mar 4, 2025
Priority date	—
Expiry date	Dec 24, 2041

Classification

Technology area (CPC A)Human Necessities
CPC primaryA23V2002/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Described herein is a precursor compound of formula (I) releasing 2-acetyl-1-pyrroline and a method to release 2-acetyl-1-pyrroline from the precursor compound of formula (I) in the form of any one of its stereoisomers, tautomers, salts or as a mixture thereof, where R1 represents a hydrogen atom or a C1 to C10 hydrocarbon group optionally including one to three heteroatoms; X represents an amino acid, a peptide or a OR2 wherein R2 represents a hydrogen atom or a C1 to C20 hydrocarbon group optionally including one to three heteroatoms and n is 0 when the dotted line represents a single bond or n is 1 when the dotted line represents no bond.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.